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Welcome to GNU World

This page is dedicated to Richard M. Stallman, the leader of the GNU project.

"Free software" is a matter of liberty, not price. To understand the concept, you should think of "free" as in "free speech," not as in "free beer."

Free software is a matter of the users' freedom to run, copy, distribute, study, change and improve the software. More precisely, it refers to four kinds of freedom, for the users of the software:

  • freedom 0: The freedom to run the program, for any purpose.

  • freedom 1: The freedom to study how the program works, and adapt it to your needs. Access to the source code is a precondition for this.

  • freedom 2: The freedom to redistribute copies so you can help your neighbor.

  • freedom 3: The freedom to improve the program, and release your improvements to the public, so that the whole community benefits. Access to the source code is a precondition for this.
[Richard M. Stallman]
Richard M. Stallman



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